In biological classification, a seven-level classification system is generally adopted, namely, boundary, phyla, class, order, family, genus and species. Species are specific organisms and the basic unit of biological classification. Related species (similar in characteristics) belong to genera, related genera belong to families, families belong to orders, orders belong to classes, classes belong to phylum, and phylum belongs to boundaries. The lower the classification level, the more similarities between organisms.

In biological classification, chickens are classified as follows: animal kingdom

chordata

Vertebrate subfamily

, birds

, galliformes

Pheasant

, the original chicken.

, scabies

grow

. Our common breed is domestic chicken, which is a subspecies of domestic chicken.

Chickens belong to the pheasant family. There are more than 100 species and more than 500 subspecies of pheasant, pheasant, partridge, golden pheasant, blue pheasant, brown pheasant, quail, blood pheasant, silver pheasant, turkey and snow pheasant.

Domestic chicken is domesticated from domestic chicken and belongs to a subspecies of domestic chicken.

jungle fowl